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TES: The largest network of teachers in the world
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Electromagnet Power Experiment
Table of Contents
Problem Scenario
Broad Question:
What effects an electromagnet's strength?Specific Question:
Does the kind of metal affect the strength of an electromagnet?Hypothesis:
It is hypothesized that the type of metal will effect the electromagnet's strength.Graph of Hypothesis
Variables
Independent Variable: The independent variable is the type of metalDependent Variable: The strength of the electromagnet.
Variables That Need To Be Controlled: Battery power, number of coils around the nail, length of nail, battery size.
Vocabulary List That Needs Explanation
Newtons are used to measure force.General Plan
I will make to identical magnets except for the type of metal coiled around the nail. Then I will attach it to a force sensor then the screw will be attached to string and set on the magnet then pulled off.Potential Problems And Solutions
Safety Or Environmental Concerns
So safety concerns are direct short, battery acid, and the nail.Experimental Design
Controlled, manipulated experiment.Number Of Trials: 2
Number Of Subjects In Each trial: 1
When data will be collected: during or after school.
Number of Observations: 4
Where will data be collected: In science classroom for team 2
Resources and Budget Table
Data Table
Time Line
Background Research
An electromagnet can be able to pick up cars or can pick up a screw driver but they all work the same way a source of electricity powering the battery by electrifying a wire coiled around a nail or screw. The study of how magnetism and electricity was never actually studied until 1873. A Tesla is a unit of measurement that is used to measure magnetism.References
http://science.howstuffworks.com/electromagnet1.htmDetailed Procedure
Diagram
Photo List
Picture sources:HowStuffWorks. Web. 16 Mar. 2012. <http://science.howstuffworks.com/electromagnet2.htm>.
"Dual-Range Force Sensor." Vernier Software & Technology. Web. 16 Mar. 2012. <http://www.vernier.com/products/sensors/force-sensors/dfs-bta/>.
"Electromagnetic Spectrum." Lawrence Berkeley National Laboratory. Web. 26 Apr. 2012. <http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html>.
Results
All Raw Data
Graphs
Photos
Data Analysis
Conclusion
The results of my data is copper had an average of 0.516732 and mechanics wire had an average of 0 this makes my hypothesis correct that the metal coiled around the nail affects the strength of the electromagnet.Discussion
The data shows that copper makes a better electromagnet than mechanics wire. The relationship is very strong between the independent and dependent variables. I was able to answer my experiment question very easily. My data could have some errors because the mechanics wire was not insulated so the electricity did not coil around the nail but instead went straight through the nail not giving it the magnetic field to be an electromagnet possible corrupting the data. This data could help in the process of making stronger electromagnets or the properties of copper or magnetism. There are many people that could use this data to help the electromagnet business in making better electromagnets. This experiment could have been better by knowing the exact metal the mechanics wire actually is. This can benefit science society because scientists can create bigger, and stronger.Benefit to Community and/or Science
Abstract